Free
In-App Purchases

Details

Released
October 7, 2024
Updated
October 27, 2026

Features

GenZD Zero screenshot #1 for iPhone
GenZD Zero screenshot #2 for iPhone
GenZD Zero screenshot #3 for iPhone
iphone
iphoneDuo
ipad
🖼️Get Icon
Icons↘︎

About

Run classic idTech 1 games and community mods on your iOS device with modern rendering capabilities. Enjoy enhanced graphics, custom controls, and controller support. You must provide your own game files.

✓idTech 1 game engine support
✓Modern 3D rendering
✓Widescreen graphics
✓Dynamic lighting
✓Customizable touch controls
✓Game controller support
✓Local multiplayer
Show original description

What's New in GenZD Zero

2026.10.2

October 27, 2026

- Fixed gyroscope aiming for iPhone Duo

1

Subscriptions & In-App Purchases

$2.99

Full Version Upgrade

Unlock all features of the app.

User reviews

Ruined

Everything worked fine for years before this update, now everything is broken. i can’t set my controls because pressing a button or moving my stick will automatically set it to whatever im hovering over, i can’t navigate the menu because the sensitivity is cranked to 1000 whenever i try to move up or down, i literally cannot DO anything.
Show more

This is one of the best apps to play the ID Tech one. engine games on iOS

This is one of the best apps to play the ID Tech one engine. Games I’ve had it now for over a couple months now, and I can say certainly that playing doom on the go is one of my favorite experiences, only made possible by this app.

I bet it works good but every time I load it up it crashes

Please fix it from crashing I also use an iPad one of the newer models

Goes hard

Its good, just hope we will get a UZdoom port soon. At this moment though ProMotion is not available on the iOS version, iPadOS only (so youre stuck with 60fps for now)

Its good

I find it good Even I use it mostly for Doom mods nothing else

Developer apps

FAQ

What is GenZD Zero?

GenZD Zero is an application that allows you to run games built on the idTech 1 engine on your iOS device. It supports original game files (WADs) as well as community-created modifications (MODs), all rendered with modern graphics and features.

How do I get games to play on GenZD Zero?

GenZD Zero does not include any game content. You will need to provide your own game files (WADs) and community mods. You can move these files to the GenZD folder on your iPhone or iPad using the Files app.

Is GenZD Zero free to use?

The base version of GenZD Zero is free to download and use. However, it has limitations on the number of launch configurations and touch control layouts. Upgrading to the full version via in-app purchase unlocks unlimited configurations and custom touch controls.

What devices is GenZD Zero compatible with?

GenZD Zero is designed for iOS devices. It supports modern 3D rendering using Metal graphics and is compatible with various game controllers including PS4, PS5, Xbox One, Nintendo Switch, and MFi controllers.

Can I play with friends using GenZD Zero?

Yes, GenZD Zero supports local multiplayer. You can host or join co-op or deathmatch games with other users on the same network. The app automatically discovers hosts on your local network.